package com.study.springboot.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.study.springboot.model.entity.Student;

/**
 * <p>
 *  服务类
 * </p>
 *
 * @author Admin
 * @since 2021-11-21
 */
public interface StudentService extends IService<Student> {

    void add(Student student);

    Student queryById(Long id);

    Integer queryCount();

}
